Estimation of tissue construction cost from heat of combustion and organic nitrogen content

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	Estimation of tissue construction cost from heat of combustion and organic nitrogen content
	K. WILLIAMS ; F. PERCIVAL ; J. MERINO ; H. A. MOONEY
刊名	Plant, Cell & Environment
	1987
卷号	10 期号:9 页码:725-734
关键词	Lepechinia catycina(Benth.) Epl. Diplacus aurantiacus(Curtis) Jeps. Heteromeles arbulifolia(Ait.) Roem. production value glucose equivalent construction cost heal of combustion biosynthetic efficiency growth efficiency
中文摘要	We present a method for estimating the construction costs of plant tissues from measurements of heat of combustion, ash content, and organic nitrogen content. The method predicts glucose equivalents, the amount of glucose required to provide carbon skeletons and reductant to synthesize a quantity of organic product. Glucose equivalents have previously been calculated from the elemental composition of tissue. We define construction cost as the amount of glucose required to provide carbon skeletons, reductant and ATP for synthesizing the organic compounds in a tissue via standard biochemical pathways. The fraction of the total construction cost of a compound or tissue (excluding costs of transporting compounds) that is reflected in its glucose equivalents is the biosynthetic efficiency (E_B). This quantity varies between 0.84 and 0.95 for tissues with a wide range of compositions. Using the new method, total construction cost can be estimated to ± 6% of the value obtained from biochemical pathway analysis. Construction costs of leaves of three chaparral species were estimated using the proposed method and compared to previously published values, derived using different methods. Agreement among methods was generally good. Differences were probably due to a combination of inaccuracy in the estimated biosynthetic efficiency and technical difficulties with biochemical analysis, one of the older methods of determining construction cost.
公开日期	2013-11-15
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/4761]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	K. WILLIAMS,F. PERCIVAL,J. MERINO,et al. Estimation of tissue construction cost from heat of combustion and organic nitrogen content[J]. Plant, Cell & Environment,1987,10(9):725-734.
APA	K. WILLIAMS,F. PERCIVAL,J. MERINO,&H. A. MOONEY.(1987).Estimation of tissue construction cost from heat of combustion and organic nitrogen content.Plant, Cell & Environment,10(9),725-734.
MLA	K. WILLIAMS,et al."Estimation of tissue construction cost from heat of combustion and organic nitrogen content".Plant, Cell & Environment 10.9(1987):725-734.